Image2_Controlling influence of water and ice on eruptive style and edifice construction in the Mount Melbourne Volcanic Field (northern Victoria Land, Antarctica).JPEG
The Mount Melbourne Volcanic Field (MMVF) is part of the West Antarctic Rift System, one of Earth’s largest intra-continental rift zones. It contains numerous small, compositionally diverse (alkali basalt–benmoreite) flank and satellite vents of Late Miocene–Pliocene age (≤12.50 Ma; mainly less than...
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ftfrontimediafig:oai:figshare.com:article/21894396 2023-05-15T13:31:04+02:00 Image2_Controlling influence of water and ice on eruptive style and edifice construction in the Mount Melbourne Volcanic Field (northern Victoria Land, Antarctica).JPEG J. L. Smellie S. Rocchi G. Di Vincenzo 2023-01-13T04:28:52Z https://doi.org/10.3389/feart.2022.1061515.s003 https://figshare.com/articles/figure/Image2_Controlling_influence_of_water_and_ice_on_eruptive_style_and_edifice_construction_in_the_Mount_Melbourne_Volcanic_Field_northern_Victoria_Land_Antarctica_JPEG/21894396 unknown doi:10.3389/feart.2022.1061515.s003 https://figshare.com/articles/figure/Image2_Controlling_influence_of_water_and_ice_on_eruptive_style_and_edifice_construction_in_the_Mount_Melbourne_Volcanic_Field_northern_Victoria_Land_Antarctica_JPEG/21894396 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change glaciovolcanic tuff cone megapillow A'ā lava lava-fed delta tuya Plio–Pleistocene environment ice sheet Image Figure 2023 ftfrontimediafig https://doi.org/10.3389/feart.2022.1061515.s003 2023-01-19T00:11:52Z The Mount Melbourne Volcanic Field (MMVF) is part of the West Antarctic Rift System, one of Earth’s largest intra-continental rift zones. It contains numerous small, compositionally diverse (alkali basalt–benmoreite) flank and satellite vents of Late Miocene–Pliocene age (≤12.50 Ma; mainly less than 2.5 Ma). They demonstrate a wide range of morphologies and eruptive mechanisms despite overlapping compositions and elevations, and they occur in a relatively small area surrounding the active Mount Melbourne stratovolcano. The volcanic outcrops fall into several main categories based on eruptive style: scoria cones, tuff cones, megapillow complexes, and shield volcanoes. Using the analysis of lithofacies and appraisal of the internal architectures of the outcrops, we have interpreted the likely eruptive setting for each center and examined the links between the environmental conditions and the resulting volcanic edifice types. Previous investigations assumed a glacial setting for most of the centers but without giving supporting evidence. We demonstrate that the local contemporary environmental conditions exerted a dominant control on the resulting volcanic edifices (i.e., the presence or absence of water, including ice or snow). The scoria cones erupted under dry subaerial conditions. Products of highly explosive hydrovolcanic eruptions are represented by tuff cones. The water involved was mainly glacial (meltwater) but may have been marine in a few examples, based on a comparison of the contrasting internal architectures of tuff cones erupted in confined (glacial) and unconfined (marine, lacustrine) settings. One of the glaciovolcanic tuff cones ceased activity shortly after it began transitioning to a tuya. The megapillow complexes are highly distinctive and have not been previously recognized in glaciovolcanic successions. They are subglacial effusive sequences emplaced as interconnected megapillows, lobes, and thick simple sheet lavas. They are believed to have erupted at moderately high discharge and reduced ... Still Image Antarc* Antarctic Antarctica Ice Sheet Victoria Land Frontiers: Figshare Antarctic Victoria Land Cones The ENVELOPE(78.344,78.344,-68.635,-68.635) Cones, The ENVELOPE(78.344,78.344,-68.635,-68.635) Mount Melbourne ENVELOPE(164.700,164.700,-74.350,-74.350) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change glaciovolcanic tuff cone megapillow A'ā lava lava-fed delta tuya Plio–Pleistocene environment ice sheet |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change glaciovolcanic tuff cone megapillow A'ā lava lava-fed delta tuya Plio–Pleistocene environment ice sheet J. L. Smellie S. Rocchi G. Di Vincenzo Image2_Controlling influence of water and ice on eruptive style and edifice construction in the Mount Melbourne Volcanic Field (northern Victoria Land, Antarctica).JPEG |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change glaciovolcanic tuff cone megapillow A'ā lava lava-fed delta tuya Plio–Pleistocene environment ice sheet |
description |
The Mount Melbourne Volcanic Field (MMVF) is part of the West Antarctic Rift System, one of Earth’s largest intra-continental rift zones. It contains numerous small, compositionally diverse (alkali basalt–benmoreite) flank and satellite vents of Late Miocene–Pliocene age (≤12.50 Ma; mainly less than 2.5 Ma). They demonstrate a wide range of morphologies and eruptive mechanisms despite overlapping compositions and elevations, and they occur in a relatively small area surrounding the active Mount Melbourne stratovolcano. The volcanic outcrops fall into several main categories based on eruptive style: scoria cones, tuff cones, megapillow complexes, and shield volcanoes. Using the analysis of lithofacies and appraisal of the internal architectures of the outcrops, we have interpreted the likely eruptive setting for each center and examined the links between the environmental conditions and the resulting volcanic edifice types. Previous investigations assumed a glacial setting for most of the centers but without giving supporting evidence. We demonstrate that the local contemporary environmental conditions exerted a dominant control on the resulting volcanic edifices (i.e., the presence or absence of water, including ice or snow). The scoria cones erupted under dry subaerial conditions. Products of highly explosive hydrovolcanic eruptions are represented by tuff cones. The water involved was mainly glacial (meltwater) but may have been marine in a few examples, based on a comparison of the contrasting internal architectures of tuff cones erupted in confined (glacial) and unconfined (marine, lacustrine) settings. One of the glaciovolcanic tuff cones ceased activity shortly after it began transitioning to a tuya. The megapillow complexes are highly distinctive and have not been previously recognized in glaciovolcanic successions. They are subglacial effusive sequences emplaced as interconnected megapillows, lobes, and thick simple sheet lavas. They are believed to have erupted at moderately high discharge and reduced ... |
format |
Still Image |
author |
J. L. Smellie S. Rocchi G. Di Vincenzo |
author_facet |
J. L. Smellie S. Rocchi G. Di Vincenzo |
author_sort |
J. L. Smellie |
title |
Image2_Controlling influence of water and ice on eruptive style and edifice construction in the Mount Melbourne Volcanic Field (northern Victoria Land, Antarctica).JPEG |
title_short |
Image2_Controlling influence of water and ice on eruptive style and edifice construction in the Mount Melbourne Volcanic Field (northern Victoria Land, Antarctica).JPEG |
title_full |
Image2_Controlling influence of water and ice on eruptive style and edifice construction in the Mount Melbourne Volcanic Field (northern Victoria Land, Antarctica).JPEG |
title_fullStr |
Image2_Controlling influence of water and ice on eruptive style and edifice construction in the Mount Melbourne Volcanic Field (northern Victoria Land, Antarctica).JPEG |
title_full_unstemmed |
Image2_Controlling influence of water and ice on eruptive style and edifice construction in the Mount Melbourne Volcanic Field (northern Victoria Land, Antarctica).JPEG |
title_sort |
image2_controlling influence of water and ice on eruptive style and edifice construction in the mount melbourne volcanic field (northern victoria land, antarctica).jpeg |
publishDate |
2023 |
url |
https://doi.org/10.3389/feart.2022.1061515.s003 https://figshare.com/articles/figure/Image2_Controlling_influence_of_water_and_ice_on_eruptive_style_and_edifice_construction_in_the_Mount_Melbourne_Volcanic_Field_northern_Victoria_Land_Antarctica_JPEG/21894396 |
long_lat |
ENVELOPE(78.344,78.344,-68.635,-68.635) ENVELOPE(78.344,78.344,-68.635,-68.635) ENVELOPE(164.700,164.700,-74.350,-74.350) |
geographic |
Antarctic Victoria Land Cones The Cones, The Mount Melbourne |
geographic_facet |
Antarctic Victoria Land Cones The Cones, The Mount Melbourne |
genre |
Antarc* Antarctic Antarctica Ice Sheet Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Victoria Land |
op_relation |
doi:10.3389/feart.2022.1061515.s003 https://figshare.com/articles/figure/Image2_Controlling_influence_of_water_and_ice_on_eruptive_style_and_edifice_construction_in_the_Mount_Melbourne_Volcanic_Field_northern_Victoria_Land_Antarctica_JPEG/21894396 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2022.1061515.s003 |
_version_ |
1766015726770978816 |